42503936 has 18 divisors (see below), whose sum is σ = 84842352. Its totient is φ = 21251840.

The previous prime is 42503897. The next prime is 42503939. The reversal of 42503936 is 63930524.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42503939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82760 + ... + 83271.

It is an arithmetic number, because the mean of its divisors is an integer number (4713464).

Almost surely, 2^42503936 is an apocalyptic number.

It is an amenable number.

42503936 is a deficient number, since it is larger than the sum of its proper divisors (42338416).

42503936 is an equidigital number, since it uses as much as digits as its factorization.

42503936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166047 (or 166033 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 42503936 is about 6519.5042756332. The cubic root of 42503936 is about 348.9873751259.

The spelling of 42503936 in words is "forty-two million, five hundred three thousand, nine hundred thirty-six".